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Unit 3- Lessons 1-4

Electricity and Magnetism

TermDefinition
Electric Charge Is a property that leads to electromagnetic interactions between the particles that make up matter
Static Electricity the buildup of electric charge on an object
Electrical Conductor a material through which charges can move freely
Electrical Insulator a material through which charges cannot move easily
Semiconductors a special class of materials that conduct electrical charge better than electrical insulators but not as well as electrical conductors.
Electrical Current the rate of flow of electric charges
Voltage is the amount of work required to move each unit of charge between two points
Resistance the opposition to the flow of electric charge
Electric Circuit closed path through which electrical charges can flow
Series Circuit all parts are connected in a row that forms one path for the electric charges to follow
Parallel Circuit electric charges have more than one path that they can follow
Magnet to describe any material that attracts iron or object made of iron
Magnetic force two magnets can push each other apart because of their ends
Magnetic Field the area surrounding a magnet where magnetic forces can be detected
Electromagnetism results when electric currents and magnetic fields interact with each other
Solenoid a coil of wire that carries an electric current, and therefore produces a magnetic field
Electromagnet Wrapping a solenoid around an iron core
Electric Motor changes electrical energy into mechanical energy into mechanical energy
electromagnetic induction using a magnetic field to create an electric current in a wire
Transformers use induction to increase or decrease the voltage of alternating current
Electric generators use induction to change mechanical energy into electrical energy
Created by: 18mwarren0515